Antam reports Q2 gold, nickel exploration activities

The following is an excerpt from IDX-listed mining firm PT Aneka Tambang (Antam) on gold, nickel, bauxite and coal projects taken from the quarterly report ended June 30, 2011.

EXPLORATION

In 2Q11 (April-June 2011), Antam?s Geomin Unit conducted exploration activities focusing on nickel, gold, bauxite, and coal. Antam spent Rp46.5 billion in 2Q11 on exploration activities. During 1H11, Antam spent Rp75.2 billion for exploration activities.

Nickel
Antam conducted nickel-exploration activities in Buli, North Maluku; Lasolo, Lalindu, Mandiodo, and Tapun opaka, Southeast Sulawesi; and Pulau Gag, West Papua.

Nickel exploration activities in Buli, North Maluku covered the Sangaji and Tanjung Bull areas and were designed to upgrade the indicated and measured classifications of the areas? mineral resources and to investigate the depth of Pulau Pakal?s bedrock.

In Sangaji, Antam obtained core samples by drilling with a space interval of 25 m and a total drilling depth of 13,930.60 m; and a space interval of 100 m and a total drilling depth of 3,367 meter.

In the Tanjung Buli region, Antam took core samples by drilling with a space interval of 25 m and a total drilling depth of 1,762.60 m, and performed topographic, grid, and geophysical-tracking measurements.

Antam?s exploration activities in the Southeast Sulawesi region, which covered the Lasolo, Lalindu, Mandiodo, and Tapunopaka, were designed to upgrade the classification of the nickel ore mineral resources in these regions, to accelerate the mining activities at Tapunopaka as well as to set the stage for mining activities and to prepare the ore feed requirements of Pomalaa?s ferronickel smelters by enhancing the classification of the regions? mineral resources from inferred to indicated. Core samples were obtained in Mandiodo, Lasolo, and Lalindu by drilling with a space interval of 100 m and a total drilling depth of 1,481.70 m. Core drilling in the Tapunopaka region was performed at a 25-rn space interval and a total drilling depth of 5,756.4 m, of which 7,488 core samples were obtained.

The nickel exploration activities in Pulau Gag included core drilling with an interval space of 25 m and a total drilling depth of 6,963.20 rn, 12.5 rn geological modelling with a total drilling depth of 503.5 m, and sampling.

Gold
Gold exploration activities were conducted in the region of Muara Manderas, Jambi; Pongkor, and Papandayan, West Java; Cibaliung, Banten, Mao, West Sulawesi; and Oksibil, Papua.

The exploration activities for gold in Muara Manderas were drilling with a total drilling depth of 2,141 m. Antam also conducted Detailed Geological Mapping (DGM), and trenching.

Exploration activities at Pongkor included DGM, core drilling, sterilization-drilling test with a total drilling depth of 6,657.45 m.

Gold exploration activities at Papandayan included Semi-Detailed Geological Mapping (SDGM), DGM, and outcrop measurement.

Exploration activities at Cibaliung include DGM, SDGM, and sampling.

Exploration activities at Mao, Batuisi, and Karosa included DGM, trenching, drilling, and sampling.

At Oksibil, Antam conducted Regional Geological Mapping (RGM) and SDGM covering areas with perimeters of, respectively, 1,039 and 43 hectares and sampling.

Bauxite
Antam?s bauxite exploration activities were conducted in West Kalimantan, which covered the regions of Mempawah, Landak, Tayan, and Munggu Pasir. These activities were grid measurement, test pitting and core sampling.

Coal
Coal exploration activities in Jambi included RGM, SDGM, DGM, as well as a 1.37 km track measurement. (end of excerpt)